Re: [ADMIN] pg_upgrade from 9.1.3 to 9.2 failed

On Mon, Sep 24, 2012 at 09:06:04AM -0400, Peter Eisentraut wrote:
> On 9/24/12 8:55 AM, Bruce Momjian wrote:
> > I can confirm that pg_upgrade does case-insensitive comparisons of
> > encoding/locale names:
> >
> > static void
> > check_locale_and_encoding(ControlData *oldctrl,
> > ControlData *newctrl)
> > {
> > /* These are often defined with inconsistent case, so use pg_strcasecmp(). */
> > if (pg_strcasecmp(oldctrl->lc_collate, newctrl->lc_collate) != 0)
> > pg_log(PG_FATAL,
> > "old and new cluster lc_collate values do not match\n");
> > if (pg_strcasecmp(oldctrl->lc_ctype, newctrl->lc_ctype) != 0)
> > pg_log(PG_FATAL,
> > "old and new cluster lc_ctype values do not match\n");
>
> I seem to recall that at some point in the distant past, somehow some
> Linux distributions changed the canonical spelling of locale names from
> xx_YY.UTF-8 to xx_YY.utf8. So if people are upgrading old PostgreSQL
> instances that use the old spelling, pg_upgrade will probably fail. A
> fix might be to take the locale name you find in pg_control and run it
> through setlocale() to get the new canonical name.

Or we could just remove dashes from the name before comparisons.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +